To start the Main Combo, get either two Telefons or Telefons+Platinum Gadget on field.
Two Telefons: https://www.duelingbook.com/replay?id=721052-52614349
Telefons + Platinum Gadget: https://www.duelingbook.com/replay?id=721052-52617894
If your opponent is occupying a zone (requires three Telefons):
(Left occupied): https://www.duelingbook.com/replay?id=721052-52707429
(Right occupied): https://www.duelingbook.com/replay?id=721052-52707915
Tips:
Your goal every game is to get 2+ Telefons into rotation and OTK your opponent.
Therion "King" Regulus acts as both negation and an extender to get out Platinum Gadget.
Small world bridges usually end with Gizmek Naganaki (Light). Use its first effect to get Telefon, second effect to get whatever your small world bridge was (typically another Telefon or Gizmek Orochi (Dark)).
Cyberse Clock Dragon is not a hard once per turn. The second summon needs to be chain blocked by Clock Lizard's effect to avoid ash blossom. Pay attention to remaining cards in deck when fusion summoning using material from grave; you have to mill the exact amount.
Extra Deck is extremely tight now that Bishbaalkin is banned. There may be other options if you allow yourself some main deck bricks. Machu Mech is a fun and interactive card for both players.